Home / 11,106.36-15,330.06-6,393.96

Finding the Fourth Proportional to 11,106.36, 15,330.06 and 6,393.96

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Solution

The fourth proportional to 11,106.36, 15,330.06 and 6,393.96 is: 8,825.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.36 : 15,330.06 = 6,393.96 : x
  2. Step 2: Convert to fraction form
    11,106.36/15,330.06 = 6,393.96/x
  3. Step 3: Cross multiply
    11,106.36x = 15,330.06 × 6,393.96
  4. Step 4: Simplify right side
    11,106.36x = 98,019,790.44
  5. Step 5: Solve for x
    x = 98,019,790.44/11,106.36
  6. Step 6: Final answer
    x = 8,825.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.